Home / 881,071.72-1,320,961.20-281,687.92

Finding the Fourth Proportional to 881,071.72, 1,320,961.20 and 281,687.92

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Solution

The fourth proportional to 881,071.72, 1,320,961.20 and 281,687.92 is: 422,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,071.72 : 1,320,961.20 = 281,687.92 : x
  2. Step 2: Convert to fraction form
    881,071.72/1,320,961.20 = 281,687.92/x
  3. Step 3: Cross multiply
    881,071.72x = 1,320,961.20 × 281,687.92
  4. Step 4: Simplify right side
    881,071.72x = 372,098,812,828.70
  5. Step 5: Solve for x
    x = 372,098,812,828.70/881,071.72
  6. Step 6: Final answer
    x = 422,325.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.